According to Walter, benefits include: greater cutting depths; higher feed rates at low cutting forces – thanks to the curved cutting edge and deep chip-breaker groove that consequently reduce machining temperature; improved metal removal – in one test, 18.36 l/h instead of 10.71 l/h; and increased tool life of up to 75% – courtesy of the variable rake angle in the area of the corner radius that permits soft chip reforming.

The main cutting edge, which is protected by a negative chamfer, prevents fractures when machining hard edge zones and optimises the performance on forged parts, for example. Components needing interrupted cuts and other demanding operations are equally viable, while customers machining materials such as AISI 316, Inconel 718 and titanium, in particular, will gain rewards.

Available in the standard basic shapes of CNMM, DNMM and SNMM, the HU5 geometry means Walter now offers 12 geometries in six grades, as well as tools with precision cooling and ceramic or CBN inserts for ISO M and S workpieces.